dan350zr
Super Freak
Well technically with the Flash he doesn't need armor unless the New 52 completely undid Geoff John's explanation of the Speed Force. John's proposed that the Speed Force when in effect created a type of barrier around the Flash when he was traveling at high speeds otherwise when he hit certain speeds no fabric on earth would withstand the friction of the suit against the air, this barrier allowed him to sustain a certain amount of damage at speed without real physical harm. Of course it has it's limitations but still, Probably the best explanation of his powers and it would be a shame if they ignored it now.
In the new Flash TV series if he runs super fast with normal clothes on they catch on fire... he has to use a special suit.....